/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package com.feilong.lib.org.apache.http.conn.socket;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;

import com.feilong.lib.org.apache.http.HttpHost;
import com.feilong.lib.org.apache.http.annotation.Contract;
import com.feilong.lib.org.apache.http.annotation.ThreadingBehavior;
import com.feilong.lib.org.apache.http.protocol.HttpContext;

/**
 * The default class for creating plain (unencrypted) sockets.
 *
 * @since 4.3
 */
@Contract(threading = ThreadingBehavior.IMMUTABLE)
public class PlainConnectionSocketFactory implements ConnectionSocketFactory{

    public static final PlainConnectionSocketFactory INSTANCE = new PlainConnectionSocketFactory();

    public static PlainConnectionSocketFactory getSocketFactory(){
        return INSTANCE;
    }

    public PlainConnectionSocketFactory(){
        super();
    }

    @Override
    public Socket createSocket(final HttpContext context) throws IOException{
        return new Socket();
    }

    @Override
    public Socket connectSocket(
                    final int connectTimeout,
                    final Socket socket,
                    final HttpHost host,
                    final InetSocketAddress remoteAddress,
                    final InetSocketAddress localAddress,
                    final HttpContext context) throws IOException{
        final Socket sock = socket != null ? socket : createSocket(context);
        if (localAddress != null){
            sock.bind(localAddress);
        }
        try{
            sock.connect(remoteAddress, connectTimeout);
        }catch (final IOException ex){
            try{
                sock.close();
            }catch (final IOException ignore){}
            throw ex;
        }
        return sock;
    }

}
